Three dimensional game board



FIG. 1 is a perspective view of a three dimensional _game board showing our new design;

FIG. 2 is a side elevational view thereof, the other _three sides being identical in appearance;

FIG. 3 is a top plan view thereof; and

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a three dimensional game board, substantially as shown and described. 